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Syntax
is-level
{
level-1
|
level-1-2
|
level-2
}
undo
is-level
Default
The IS level is
level-1-2
.
Views
IS-IS view
Predefined user roles
network-admin
Parameters
level-1
: Specifies Level-1, which means IS-IS only calculates intra-area routes and maintains the Level-1
LSDB.
level-1-2
: Specifies Level-1-2, which means IS-IS calculates routes and maintains the LSDBs for both Level-1
and Level-2.
level-2
: Specifies Level-2, which means IS-IS calculates routes and maintains the LSDB for Level-2 only.
Usage guidelines
If only one area exists, configure all the routers as either Level-1 or Level-2, because the routers do not
need to maintain two identical LSDBs at the same time.
If the only area is an IP network, configure all the routers as Level-2 for scalability.
Examples
# Specify the IS level as Level-1 for the IS-IS process 1.
<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] is-level level-1
is-name
Use
is-name
to specify a host name for the IS and enable dynamic system ID to hostname mapping.
Use
undo is-name
to disable dynamic system ID to hostname mapping.
Syntax
is-name
sys-name
undo is-name
Default
Dynamic system ID to hostname mapping is not enabled.
Views
IS-IS view
Predefined user roles
network-admin
